$ git clone -n https://gitee.com/wency_cn/mariadb.git /var/lib/mock/dist-an23-build-492665-74553/root/chroot_tmpdir/scmroot/mariadb
Cloning into '/var/lib/mock/dist-an23-build-492665-74553/root/chroot_tmpdir/scmroot/mariadb'...
$ git fetch origin 7773cccbcd5e34d72a0047d03fa3d15a9a25b34c:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/mariadb
 * [new ref]         7773cccbcd5e34d72a0047d03fa3d15a9a25b34c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7773ccc Update code from upstream